Shape selective reactions with zeolite catalyst modified with group IVB metal
First Claim
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1. A process for conversion of organic compounds, said process comprising contacting said organic compounds with a crystalline zeolite catalyst at a temperature of between about 250°
- C. and about 750°
C. and a pressure within the approximate range of 105 N/m2 to 107 N/m2, said zeolite being characterized by a silica to alumina mole ratio of at least 12 and a constraint index within the approximate range of 1 to 12, said zeolite having undergone prior modification by treatment with one or more compounds containing metal elements of Group IVB to deposit thereon at least 0.25 weight percent of such metal element.
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Abstract
A process for the conversion of aromatic compounds to dialkylbenzene compounds rich in the 1,4-dialkylbenzene isomer. The reaction is carried out in the presence of a particular type of zeolite catalyst having a silica to alumina mole ratio of at least 12 and a constraint index of about 1-12, said catalyst having been modified by treatment with compounds of germanium, tin and/or lead, and optionally phosphorus, to deposit a minor proportion of such elements on the zeolite.
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Citations
26 Claims
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1. A process for conversion of organic compounds, said process comprising contacting said organic compounds with a crystalline zeolite catalyst at a temperature of between about 250°
- C. and about 750°
C. and a pressure within the approximate range of 105 N/m2 to 107 N/m2, said zeolite being characterized by a silica to alumina mole ratio of at least 12 and a constraint index within the approximate range of 1 to 12, said zeolite having undergone prior modification by treatment with one or more compounds containing metal elements of Group IVB to deposit thereon at least 0.25 weight percent of such metal element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
- C. and about 750°
Specification